US2002739A - Extensible electric conductor - Google Patents

Extensible electric conductor Download PDF

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Publication number
US2002739A
US2002739A US580385A US58038531A US2002739A US 2002739 A US2002739 A US 2002739A US 580385 A US580385 A US 580385A US 58038531 A US58038531 A US 58038531A US 2002739 A US2002739 A US 2002739A
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US
United States
Prior art keywords
electric conductor
conductor
extensible
thread
extensible electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US580385A
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English (en)
Inventor
Herkenberg Karl
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2002739A publication Critical patent/US2002739A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/06—Extensible conductors or cables, e.g. self-coiling cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C7/00—Runways, tracks or trackways for trolleys or cranes
    • B66C7/12—Devices for changing direction of travel or for transferring from one runway to another; Crossings; Combinations of tracks of different gauges
    • B66C7/14—Runway interlocking devices

Definitions

  • My invention relates to a conductor of electric-
  • the conductors can be separately connected to ity, capable 01. being extended longitudinally to manifold cords by a number of contacts. increase its usefulness and improve its appli- Having thus described my inventmn, what I cability especially to movable electric apparatus. 01541111181 The conductor md the mthod for production 1.
  • a longitudinally expansible electric conduc- 5 or the extensible electric conductor is mpresent tor comprising a core of elastic material and con- 5 ed m the mm ductor elements loosely braided around said can core, each of said elements comprising an ing z zfi gzg ggfiaf 22 2; 22:3 33 sulating thread and a flat metallic band spirally 0 around and serve to cover a nonconducting core wound around the mSUJPtmg thread 10 b or rubber or other stubble material Each of 2.
  • a flexible longltudmally expansible electric h strands consists of I an metallic b'and c for conductor cord consisting of an extensible rubber core and conductor elements loosely braided instance of silver, which is wound around an inaround said core, each of said conductor elesulating thread :2, made of silk or other 5111 ments comprising a flexible fibrous thread and a 15 material-
  • the braided confluctor e flat metallic band helically wound around said 15 y a b ar c v 1, co sis in of an Insulation thread, the-conductive covering formed by said thread, 11 instance I 111!, Whifih as here conductor elements around said rubber core being shown is covered by a similar cover a, which is surrounded by an extensible insulating casing covered by the outside covering it.
  • the insulamade of threads is used to cover a.
  • tion covering may be formed of rubber tubes. KARL HERKENBERG. 20

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insulated Conductors (AREA)
US580385A 1930-12-05 1931-12-11 Extensible electric conductor Expired - Lifetime US2002739A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002739X 1930-12-05
GB33247/31A GB389190A (en) 1930-12-05 1931-12-01 Extensible electric conductors

Publications (1)

Publication Number Publication Date
US2002739A true US2002739A (en) 1935-05-28

Family

ID=32471694

Family Applications (1)

Application Number Title Priority Date Filing Date
US580385A Expired - Lifetime US2002739A (en) 1930-12-05 1931-12-11 Extensible electric conductor

Country Status (5)

Country Link
US (1) US2002739A (en(2012))
BE (1) BE384694A (en(2012))
FR (1) FR727279A (en(2012))
GB (1) GB389190A (en(2012))
NL (1) NL59382C (en(2012))

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456015A (en) * 1944-08-01 1948-12-14 Columbian Rope Co Electrical conductor
US2488527A (en) * 1944-06-07 1949-11-22 Dutcher Harold William Extensible conductor
US2549777A (en) * 1941-12-30 1951-04-24 Edward C Craig Buoyant electrode
US2609417A (en) * 1949-05-06 1952-09-02 Western Electric Co Retractile cord and method of making it
US2751570A (en) * 1950-10-26 1956-06-19 Aircraft Marine Prod Inc Electrical connector
US2865978A (en) * 1954-08-26 1958-12-23 Bernard E Smith Elastic ropes and cables
US3100240A (en) * 1956-07-17 1963-08-06 John W Schmidt Extensible electric conduit
US3217705A (en) * 1962-05-02 1965-11-16 Orman B Billings Device for testing internal bleeding
US3277231A (en) * 1964-01-17 1966-10-04 Electrolux Corp Conductor-carrying flexible conduit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549777A (en) * 1941-12-30 1951-04-24 Edward C Craig Buoyant electrode
US2488527A (en) * 1944-06-07 1949-11-22 Dutcher Harold William Extensible conductor
US2456015A (en) * 1944-08-01 1948-12-14 Columbian Rope Co Electrical conductor
US2609417A (en) * 1949-05-06 1952-09-02 Western Electric Co Retractile cord and method of making it
US2751570A (en) * 1950-10-26 1956-06-19 Aircraft Marine Prod Inc Electrical connector
US2865978A (en) * 1954-08-26 1958-12-23 Bernard E Smith Elastic ropes and cables
US3100240A (en) * 1956-07-17 1963-08-06 John W Schmidt Extensible electric conduit
US3217705A (en) * 1962-05-02 1965-11-16 Orman B Billings Device for testing internal bleeding
US3277231A (en) * 1964-01-17 1966-10-04 Electrolux Corp Conductor-carrying flexible conduit

Also Published As

Publication number Publication date
FR727279A (fr) 1932-06-15
NL59382C (en(2012)) 1947-05-16
GB389190A (en) 1933-03-16
BE384694A (en(2012)) 1932-01-30

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